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ISO/TS 19657:2017 specifies definitions and technical criteria (acceptable sources, materials and processes) to be fulfilled for food ingredients to be considered as natural.

ISO/TS 19657:2017 is applicable to food ingredients.

ISO/TS 19657:2017 is applicable in business-to-business communication (B2B) only. It does not apply to product communication to consumers (i.e. voluntary and mandatory labelling).

ISO/TS 19657:2017 does not apply to human safety, environmental safety, socio-economic considerations (e.g. fair trade) and the characteristics of packaging materials.

ISO/TS 19657:2017 does not apply to the following:

- flavourings^[1]; however, it is possible to assess the non-flavouring components of flavourings according to the technical criteria defined in this document;

- natural mineral waters^[2];

- bottled drinking waters^[3].

There are no requirements for genetic engineering nor for agricultural practices such as organic production in this document. However, these can be subject to regulations and/or other requirements.